[in-ter-ven-shuh-niz-uh m]


the policy or doctrine of intervening, especially government interference in the affairs of another state or in domestic economic affairs.

Origin of interventionism

First recorded in 1920–25; intervention + -ism
Related formsin·ter·ven·tion·ist, noun, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for interventionist

Contemporary Examples of interventionist

Historical Examples of interventionist

British Dictionary definitions for interventionist



of, relating to, or advocating intervention, esp in the affairs of a foreign country


an interventionist person or state
Derived Formsinterventionism, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for interventionist



1923, from intervention + -ism. Interventionist, as a noun, is recorded from 1839.

Online Etymology Dictionary, © 2010 Douglas Harper